Home / 43,263.10-64,901.40-13,678.12

Finding the Fourth Proportional to 43,263.10, 64,901.40 and 13,678.12

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Solution

The fourth proportional to 43,263.10, 64,901.40 and 13,678.12 is: 20,519.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,263.10 : 64,901.40 = 13,678.12 : x
  2. Step 2: Convert to fraction form
    43,263.10/64,901.40 = 13,678.12/x
  3. Step 3: Cross multiply
    43,263.10x = 64,901.40 × 13,678.12
  4. Step 4: Simplify right side
    43,263.10x = 887,729,137.37
  5. Step 5: Solve for x
    x = 887,729,137.37/43,263.10
  6. Step 6: Final answer
    x = 20,519.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.